Valve for suction pumps



ngc. 21,1926.

C. VON ENDE VALVE FOR sUcTIoN PUMPS Filed Nov'. '29; 1924 INVENTOR Carl vVon Ende Y Patented Dec. 2l', 1925'.

frenan* CARL/von ENDE,- oir saonaifianro, climi?carin-Ci.A j

vALvn For. sperren Postres-y e Y Application med November-ae, i924. serial np...75a.8s1fx .y

f This invention relatesv to improvements in.

suction pump constructionand particularly vto a valve for use in the suction lines-of ory dinary suction pumps'. Y My principal object isv toprovide avalve for this purpose intended tol takeithe place of the usual flap valve commonly used, and which mayl be easily installed in the standard valve cage usedin connection with such 10 Hap valves, by simplyremoving thelatter.`

Flap valves are not satisfactory,s1ncedirt and the like can too` readily lodge under the same and prevent the proper closing of the valves, and l. after-some use the usual 15" leather hingeprovidedwith such valves bei comes worn out and the valvek worksloose,

I Vfails to'seat evenly and finally comes off.

. My valve overcomes these defects, and be# ing as stated, easily applied to the valve cage without making changes to the main pump structure, andat small cost'. A further object ofthe invention is rto "produce a simple" and rinexpensive device and yet one which will *bey exceedingly effective ,for the purpose for which it is designed.

" These objects Iaccomplish by means of such structure and relative arrangement of following specification and claim.l

In the drawings similar characters offreference indicate corresponding parts in the` several views :v Y

Fig. l is a sectional elevatiom'of'a suction ypump valve cage of ordinary form as corn'-` valve `mounted therein in place of such flat valve.

n Referring now more particularly to the vcharacters of reference on the drawings the, [numeral l denotes a-tubular'valve cage of common form adapted at its lower end for igconnection to a' suction pipe 2 and having adjacent its upperend a valveseat flange 3 surrounding the main bore of the cage. The Y delivery chamber l of the cage above and adjacent 'the horizontal plane of the seat 8 isv i0 larger than the suction chamber belowthe' ranged as twov '9 preferably Theltwo cross `pieceslof thev two pairs ofl rods are arrangedy one above theotller, and are seintersection by weld- Y ing` or the like, so that a rigid cross ina hor@v .iizo'ntal plane isforme'd, asA shown in Fig. 2.' asprovided with the pump, may be installed `through the parts as willfully appear by a'perusal of the 8 monlyused" with a flat yvalve showing :my

Fig. 2 is al cross sectiononthe line 2 2 of'V disc and smallerjthan"V the same is da metall plate 6 to which thegdisois removablyfsef n cured bya bolt '7 or the like.

This plate not only servies to brace' andl stiife'n thedisc, but also serves as supporting means for a plurality of guidefrods 8. These rods depend from thev plate into theV cage andi are securedtosaid plate, andare arpair.s',f"the plan-e1 of Onepair being at right Y other pair. metrically opposed to 'each other and are connected at their Y lower ends formed integraly with said rods.

cured together vat their y .To prevent the .valve 'frombei'ng .dislodged from-thel cage with thefsuctional with the operation of the'pump,

ward,` movement, Ii .place anordinary bolt .l0` diametrically throughl the cage tance above thecross piece 9 when the valve anglesto the plane ofthey Y The rods'of each pair are vdiabya cross piece* forcejhad a p and yet alf lowing ythe valve `to havevthe-necessary up-v a said dis'- is seated. This-"bolt of course projects.

To prevent leaking of .water from the cage through'the bolt place washers of rubber l1- orv the like bespace between the different rods orifices, I preferably Y tween the head andnut ofthe bolt andthe f adjacent surfaces of the cage. Y The size of the valve disc, the length of the rods-and the widthbetween same of course depends upon thecorresponding sizesof the Y cages of the different pumps. Having, however, ya rvcorrectly kvproportioned. valve fora certain size of. cageA itwill Y be evident that" the valve can be easily mounted in place and y removed upon the removal of the usual' side i plate'12 on the cage above the valve-seat. Froml the foregoing description it will be readilyseen that I have produced such a the invention as set forth herein.`

device as substantiallvfulfllls the objects of While this specicationsets forth Ain de;

tail the'l present and preferred construction of the device, still in practice such deviations from such detail may be resorted to las do not form a departure fromv the spirit of thev invention, as defined by the appended claim. j j v Havingv thus de sc'ribedmy invention what I claim as'new and useful and desire to secure by Letters Patentis: y

A valve structure vincluding a tubular Valve cage arranged` for connection with e suction pipe at' its lower .end and having e valve seat at its upper end, a valve to seat y freely on the seatfor movement longitudi- Yand being joined at their lowerV ends tbev ,greatest distance vbetween opposedwires being` less than the diameter oiAV the cage ad jacent the Valve seat to alloweasy' remoyal of the; Valve and'wireromthe Gage; and a bolt set through the sidewalls of the cage and across the cage between theV wires to normally prevent suoli removal, the bolt being removable from outside the cage whereby it can be removed and the Valve and wires fished from the cage without disturbing the esige and its connections with vthe suction pipe. w

ture.

In testimony whereof 'l atix Vmy signa- 20 CARL VoN ENDE." Y 

